# Rigwise: Rigging Calculator

> Sling Angle, Crane, WLL & Load

Canonical page: [https://chrome-stats.com/d/id6780810237](https://chrome-stats.com/d/id6780810237)

## Overview

- **ID:** `id6780810237`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Vytautas Jazbutis
- **Category:** Utilities
- **Version:** 1.0.1
- **Last updated:** 2026-09-02
- **First published:** 2026-06-18
- **Size:** 1.70 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/rigwise-rigging-calculator/id6780810237)
- **Website:** [https://evelaina.com/rigwise/terms](https://evelaina.com/rigwise/terms)
- **Privacy policy:** [https://evelaina.com/rigwise/privacy](https://evelaina.com/rigwise/privacy)

## Description

Sling tension, WLL by hitch, center of gravity, crane capacity — offline, one-time purchase, no account. Plus a gear library with inspection dates and saved lift plans.

Rigwise is the rigging calculator built for the field — fast, correct, fully offline, and a one-time purchase. No subscription. No account. No internet required. Your data never leaves your phone.

Built for crane riggers, signal persons, ironworkers, and anyone who plans a lift.

THE CALCULATORS (always free)
• Sling Tension — see how the load in each leg climbs as the sling angle drops. Enter the angle, or just the sling length and height. Clear red warning below 30°.
• Working Load Limit — vertical, choker, and basket hitches, with the angle and D/d reduction factors applied.
• Center of Gravity — find how much each pick point actually carries when the load is off-center.
• Crane Capacity % — check your load against the chart capacity, with a warning when you're over.

Every result shows a plain-language safety state, glove-readable, in light or dark.

RIGWISE PRO — the studio (one-time purchase, yours forever)
• Gear inventory — log your slings, shackles, chains, and hooks with their tagged WLL.
• Inspection tracking — Rigwise flags gear that's overdue for inspection before you grab it.
• Lift Plans — save a named lift; Rigwise re-computes the numbers from your inputs so a saved plan is never a stale, hand-typed figure.
• Field-ready export — share a clean lift-plan summary with your crew.

WHY RIGWISE
• Works 100% offline — job sites don't have signal.
• One-time purchase — the tools you paid for keep working, forever.
• Private by design — no account, no tracking, nothing collected.
• Correct — the math is deterministic and exhaustively tested against standard rigging practice.

SAFETY
Rigwise is a calculation aid. Always verify every result against the manufacturer's tag, the load chart, and a qualified person. It is not a substitute for an engineered lift plan or professional judgment. Rigging is inherently hazardous; you are solely responsible for the safety of any lift.

## Rankings

- #1,858,940 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6780810237)